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PLC backplane analyzer for field forensics and intrusion detection

United States Patent

May 12, 2015
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
The various technologies presented herein relate to the determination of unexpected and/or malicious activity occurring between components communicatively coupled across a backplane. Control data, etc., can be intercepted at a backplane where the backplane facilitates communication between a controller and at least one device in an automation process. During interception of the control data, etc., a copy of the control data can be made, e.g., the original control data can be replicated to generate a copy of the original control data. The original control data can continue on to its destination, while the control data copy can be forwarded to an analyzer system to determine whether the control data contains a data anomaly. The content of the copy of the control data can be compared with a previously captured baseline data content, where the baseline data can be captured for a same operational state as the subsequently captured control data.
Mulder; John (Albuquerque, NM), Schwartz; Moses Daniel (Albuquerque, NM), Berg; Michael (Albuquerque, NM), Van Houten; Jonathan Roger (Albuquerque, NM), Urrea; Jorge Mario (Albuquerque, NM), King; Michael Aaron (Albuquerque, NM), Clements; Abraham Anthony (Albuquerque, NM), Trent; Jason (Silver Spring, MD), Depoy; Jennifer M. (Albuquerque, NM), Jacob; Joshua (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
13/ 947,887
July 22, 2013
STATEMENT OF GOVERNMENTAL INTEREST This invention was developed under contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.